Sometimes I get lazy and don't want to reach for the home key on the keyboard. I would rather use my mouse to go to top page of a site without scrolling with the mouse. In IE, you can right click the scroll bar and choose top and it will go there. I do not have that option in Firefox 19.0.

I am running Waterfox, so my home key does almost nothing. I have never before been wanting to use mouse gestures, but Waterfox is making it a necessity. However, merely looking at All-in-one Gestures made me tired; I want two features, not a hundred and seventeen! Sorry, skwire, I can't take this much fun, when browsing. So instead I went for this:

About this Add-on:Scroll to Top/Bottom adds toolbar buttons and context menu options for jumping to the top or bottom of the current page.

I don't use them all. I blanked them all out and defined just the few that I use. Namely, back, forward, refresh, new tab, close tab, next tab, previous tab, top of page, bottom of page, and load URL from clipboard.

there is the Click-free browsing chrome addon (I know, it's chrome) that pops up navigation buttons (including move to top/bottom) when you move your cursor to the right edge of the webpage and you "click" them just by hovering over them